Clutch band



Dec. 18, 1923. 7,777,577

J. MALLIGAN ET AL CLUTCH BAND Filed March 16, 1923 f INVENTORS J.Mcdii an,

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ATTORNEYS Patented Dec. 18, 1223.

edits rates JOSEPH MIALLIGAN AND CHARLES R. LYTLE, OF POINT IVIARION, PENNSYLVANIA.

CLUTCH BAND.

Application filed. March 16, 1923.

T 0 aZZ whom it may concern:

Be it known that we, Josnrr-r MALLIGAN and CHARLES R. LYTLE, citizens of the United States, and residents of Point Ma rion, in the county of Fayette and State of Pennsylvania, have invented certain new and useful Improvements in Clutch Bands, of which the following is a specification.

This invention relates to an improved clutch band and is more particularly directed to that type of band described and claimed in our Patent No. 1,382,305 dated June 21, 1921.

An object of the invention is the provision of a band adapted to be used in connection with Ford transmission for controlling the reverse, slow speed, and the brake and is of such a type that it may be readily removed or replaced when it is necessary to apply new linings to said band and without necessitating the disassembling of the transmission or its respective casing or housing.

Another object of the invention is the provision of a brake band which may be readily removed or applied to the transmis sion of the well-known Ford construction and having at the free extremities of the band section pivoted lugs adapted to be moved to an inoperative position and flat against the band sections when said band is being removed.

Other objects and advantages will become apparent during the course of the following description. i

The invention is illustrated by way of example in the accompanying drawings, in which,

Figure 1 is a view in perspective of the Ford transmission band provided with my invention.

Figure 2 is a fragmentary side view of the Ford transmission band partly in section disclosing my invention.

Figure 3 is a view in perspective of the several parts of the device which constitute an embodiment of my invention.

Referring to the drawings, 1 designates a metal band which may be applied either to the low speed transmission, to the reverse, 01' brake section of the well-known Ford transmission. Secured to the inner surface of the brake band 1 is afaln'ic lining which may be of any well-known construction and is secured to the metal band 1 by means of split rivets 3 passing through perforations in the band 1 and forced through the ma- Serial No. 625,544.

tcrial of ti o lining 2 and having its ends bent backwardly upon the lining 2 and sutlicieutly depressed within the lining to prevent said rivets from forming a materially raised projection above the surface of the same.

Riveted to the free ends of the metal band 1 are T-shaped cleats The outer end 6 of the T-head is located flush with the end of the metal band 1. The cleats 5 are curved coincident to the curvature of the metal band 1 and are provided with a plurality of perforations 7 through which rivets 8 are passed and swaged for locking the cleats to the ends of the metal band.

Intermediate the ends of the cleats 5 are formed sockets 9 in which is mounted a pin 10. Upon the ends of the pin are a pair of upstanding ears 11 and 12 located in parallel relation. The pin and ears form an integral construction and are forged as such from dies. One face of the cars 11 and 12 is curved as shown at 13 so that when the ears are laid fiat against the curved outer surface of the band 1 the rear or free edge of the ears will present a reduced portion and facilitate the removal or insertion of the hands when equipped with the pivoted ears 11 and 12.

It will be seen when the pins are mount ed in their respective sockets 9 and the cleats 5 are riveted to the end of the band 1 that the pins will be held in position between the cleats 5 and the metal band and thereby the ears may be rocked with the pins and either located in a vertical position or laid flat against the ends of the metal band. It will. be further noted that the ears 11 and 12 are spaced sufficiently apart so that when the ears are loweredin position said car will embrace opposite sides of the cleat 5 with the upper curved surfaces 13 of the ears being flush with the top portion or upper surface of the cleat.

As shown more particularly in Figure 2 the axes of the pins 10 are eccentrically located relative to vertical lines running centrally of the ears 11 and 12 so that the lower ends of the ears vill readily clear the stops 14. when said cars are lowered. Furthermore the eccentric mounting of the pins 10 provides a cam action between the lower ends of the ears and the band 1 o that said ars will snap into position when depressed into face to face engagement with the band 1.

The outer projecing ends 1 1- of the T- head are adapted to engage the outer surfaces oi the ears 11 and 13 when said ears are located in the-vertical position as shown in Figure and prevent said cars from 1eing moved through an arc of a circle oi more than substantially 90. In other words, the portions 1% of the 'l'--head maintain the cars 11 and 12 in a vertical position and act as stops, a

The usual rock shaft 15 is provided with a coil spring 16 which. has its opposite ends in engagement with the two pairs of 11 and 12. A nut 17 engages the opposite faces or one pair of cars for maintaining the sharl t 1.5 in position. A lock nut 18 also employed on the end of the shaft for the usual purpose.

T he usual mechanism employed for drawing the two pairs of ears 11 and 12 towards each other for contracting the band 1 is not shown since this forms no part of the invention and is well known in the art.

Vi hen it is desired to remove a band the adjusting nut 18 is loosened and the band is compressed. The cars on the pins 10 may rise slightly as the pins 10 rise in their sockets and then fall into a lowered position to clear all objects in their path when the band 1 is withdrawn from its respective drum. By the use of these movable ears the bands may be readily removed from the transmis sion housing without necessitating the removal of any part whatsoever except the usual cover plate of the housing.

The pivotal connection oi the ears 11 and 12 with the ends of the band 1 through the socket 9 ol the cleat 5 permits said ears to be moved. rearwardly from the ends of the band and laid in close association. with said band whereby the band may be readily withdrawn from the transmiss on. The fact that said ears are cut away to lie flush with the outer curved surface of the cleats eliminates any sharp corners so that the will not engage any portion ot the transmission when the bands are so withdrawn from the same.

It will be noted that the cars 11 and .152 on their inner faces are curved coincident to the curvature of the brake band. while the ears in one direction and for maintaining said ears in a substantially vertical posi- J 2. it friction or clutch band comprising a resilient metal split band, T-shaped cleats secured to the metal band adjacent to the free ends of the split band, said cleats being provided with transverse sockets adjacent their heads, apin pivotally mounted in the socket, ears rigidly connected to the ends of the pin in spaced parallel. relation, the head of the T-shaped lug being adapted to act as stops forlimiting movement of the ears in one direction and for maintaining said ears in a substantially vertical position, said pins being connected to the cars at one side of a vertical plane passing through the middle of the cars.

A friction or clutch band comprising a resilient metal split band, T-shaped cleats secured to the metal band adjacent to the free ends of the split band and curved coincident to the curvature of the ends of the split band, said cleats being provided with transverse sockets adjacent their heads, a pin pivotally mounted in the socket, ears rigidly connected 'to the ends of the pin in spaced parallel relation. the head of the T- shaped ln being adapted to act as a stop for l miting movement 01 the ears in one direction and for maintaining said ears in a substantially vertical position, the outer faces of the ears being curved co ncident to the curvature of the outer :tace of said. cleats and flush with said surface when the ears are disposed against the metal band.

' JOSEPH MA'LLIGAN. CHARLES R. LYTLE. 

